package com.kevin.common.storage;

import com.kevin.common.exception.BusinessException;
import lombok.extern.slf4j.Slf4j;
import org.springframework.util.FileCopyUtils;

import java.io.*;
import java.nio.file.Files;

/**
 * 本地存储
 *
 * @author 阿沐 babamu@126.com
 */
@Slf4j
public class LocalStorageService extends StorageService {

    public LocalStorageService(StorageProperties properties) {
        this.properties = properties;
    }

    @Override
    public String upload(byte[] data, String path) {
        return upload(new ByteArrayInputStream(data), path);
    }


    @Override
    public String upload(InputStream inputStream, String path) {

        try {
            File file = new File(properties.getLocal().getPath() + File.separator + path);

            // 没有目录，则自动创建目录
            File parent = file.getParentFile();
            if (parent != null && !parent.mkdirs() && !parent.isDirectory()) {
                throw new IOException("目录 '" + parent + "' 创建失败");
            }

            FileCopyUtils.copy(inputStream, Files.newOutputStream(file.toPath()));
        } catch (Exception e) {
            log.info("上传文件失败:[]", e);
            throw new BusinessException("上传文件失败：", e);
        }
        return properties.getLocal().getUrl() + "/" + path;
    }

    @Override
    public SysFileOutputStreamVO getUploadOutputStream(String fileName) {
        String path = getPath(fileName);
        File file;
        try {
            file = new File(properties.getLocal().getPath() + File.separator + path);

            // 没有目录，则自动创建目录
            File parent = file.getParentFile();
            if (parent != null && !parent.mkdirs() && !parent.isDirectory()) {
                throw new IOException("目录 '" + parent + "' 创建失败");
            }
            return SysFileOutputStreamVO.builder().outputStream(new FileOutputStream(file)).url(properties.getLocal().getUrl() + "/" + path).build();
        } catch (Exception e) {
            log.info("上传文件失败:[]", e);
            throw new BusinessException("上传文件失败：", e);
        }
    }
}
